Secretary of State Rex Tillerson, Exxon's CEO from 2006 to 2016. NY AG's subpoena seeks PwC records from 2010 to the present. NY Top Court Rejects Exxon's Bid to Keep Critical Files Sealed in #ExxonKnew Case New York's highest court dealt ExxonMobil a major blow Tuesday when it declined to hear the oil giant's appeal to block New York Attorney General Eric Schneiderman 's subpoena seeking audit documents in an ongoing fraud investigation of what "Exxon Knew " about the link between fossil fuels and climate change . The Court of Appeals refused to hear Exxon's assertion that the documents were protected under "accountant-client confidentiality" under state law in Texas, where the company is headquartered. The order affirms that state officials can demand Exxon's auditor, PricewaterhouseCoopers (PwC), to immediately turn over the subpoenaed documents. A memo from the Attorne...